Unlike most shower systems, the Boann Spa Shower System is built 100% with T304 Stainless steel, a material that will not degrade/rust or oxidize, and it's 100% lead-free. The Spa Shower System contains no visible plastic parts. All knobs and the hose are 100% stainless steel. The system will prevent scalding from its specially designed pressure balance valve. It only comes in a Brushed Stainless Steel finish, a finish without coating any chrome or PVD layer. It's the natural finish of the material.